Many economists and policymakers say the drop in unionization rates is an inevitable consequence of the changing global economy and advancing technology. But a new report finds that national politics plays a bigger role than globalization or technology in the decline in unionization in the United States and the 20 other nations studied.

The report from the Center for Economic and Policy Research (CEPR) looked at 21 countries with advanced economics facing the same globalization and technology changes. It found that economies with few labor protections such as the United States showed a higher decline in unionization rates than nations with economic and national policies where workers’ rights have a more prominent place in the market.

National politics are a major determinant of national unionization rates and changes in those rates in recent decades. At the same time, the data contradict the view that a decline in unionization rates is an inevitable implication of “globalization” or technological change.

Click here for the full report.